* Rach: This is the most common and versatile word, meaning "go" as a command (like "Go!") or as a third-person singular present tense ("He/She goes").
* Imich: This word also means "go," but it often implies departing or leaving, sometimes with a sense of finality.
* Falbh: Similar to "imich," this also means "go" and suggests a leaving or departure.
Therefore, "Rach!" would be the closest equivalent to a general "Go!" But for a more nuanced translation, you'd need more context.